176 



U.S. NATIONAL MUSEUM BULLETIN 27 7 



Abdomen segment two with basal half red-brown, with a narrow 

 median band extending to posterior margin, remainder white; remain- 

 ing segments white above; ninth tergiim white, with a brown spot at 

 base; see figure for details. 



Female. — Head cream; eyes metallic blue-green to brown, with 

 a broad postocular ridge, with a band of brown behind eye; back of 

 head brown-black; frons very broad, with a brown band up the 

 middle, a faint median groove on lower half, a shallow groove ex- 

 tending from corner of eye to median ocellus. Ocellar tubercle red- 

 brown; ocelli orange. Antenna! segments orange-brown. See figure 

 for details. 



Figure 117. — Brevitrichia boharti, new species, male, female: a, male wing; b, female wing; 

 c, d, lateral aspects of male and female heads; e, f, enlarged aspects of male and female 

 antennae; g, dorsal aspect of female head; h, i, ventral and lateral aspects of male termi- 

 nalia; /, ventral left and dorsal right aspects of female 8th and 9th segments; k, lateral 

 aspect of female 8th and 9th segments; /, bursal structure. 



Thorax dorsum red-brown, with a dusting of tan pollen, a lighter 

 tan patch above humeral callus; humeral and supra-alar calli tan 

 to yellow. Scutellum tan, with a brown median spot. Pleural areas as 

 in male. Wings hyaline, veins brown; halter stem tan to brown, 

 knob cream ; legs as in male. 



Abdomen second segment broad, red-brown, with a light patch 

 on the mid-lateral portions; other segments brown basally, tan 



